CN202517941U - Flat plate type scale compasses - Google Patents
Flat plate type scale compasses Download PDFInfo
- Publication number
- CN202517941U CN202517941U CN2012200067690U CN201220006769U CN202517941U CN 202517941 U CN202517941 U CN 202517941U CN 2012200067690 U CN2012200067690 U CN 2012200067690U CN 201220006769 U CN201220006769 U CN 201220006769U CN 202517941 U CN202517941 U CN 202517941U
- Authority
- CN
- China
- Prior art keywords
- compasses
- panel
- flat plate
- plate type
- circular hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Length-Measuring Instruments Using Mechanical Means (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a pair of flat plate type scale compasses which consists of a panel, an angle ruler, a graduated scale, a circular hole and a plurality of semicircular slots; and the plurality of semicircular slots are formed on the panel, the angle ruler is arranged on the left side of the panel, and the graduated scale and the circular hole are formed on the right side of the panel. The pair of flat plate type scale compasses has the beneficial effect that the pair of flat plate type scale compasses can be used not only as compasses, but also as the angle ruler and the graduated scale, has a simple structure, is economic and practical and is suitable for students and drawing workers.
Description
Technical field
The utility model relates to a kind of compasses, especially a kind of flat Graduated compasses.
Background technology
Compasses are to be used for the instrument of draw circles or string in mathematics and drawing, are usually used in construction with ruler and compasses.Compasses process normally metal, comprise that two parts connect by a hinge, wherein can adjust.Compasses divide common compasses, bow-spring compasses, drop bow, gauge etc.Compasses are made up of nib, rotating shaft, compasses supporting leg, lattice chi, hinged joint, handwriting, nib, compasses point, microtia; The upper end that is connected handwriting is inserted in the lower end of its nib; The lower end of handwriting is threaded in the upper end of nib; The concordant end of microtia is welded in the middle of the outside of compasses supporting leg, and the lower end of compasses supporting leg clamps the upper end that is connected the compasses point.
Existing compasses are simple to operate, are widely used in student and drawing worker, improve mapping efficient; But have certain shortcoming: existing compasses are to confirm the center of circle through draw point, and draw point is point relatively, is easy to injure hand; It is young to add the pupil; Self-care ability is not strong, and compasses are the drawing tools of hazardous for the pupil, and the consequence that causes also is very serious.
The utility model content
In order to overcome the deficiency of above-mentioned existing product, the purpose of the utility model is to provide a kind of flat Graduated compasses, and it is employed in semicircle slotted eye, circular hole, bevel protractor and rule are set on the panel.
For the technical scheme that purpose adopted that realizes the utility model is: a kind of flat Graduated compasses is characterized in that: it is made up of panel, bevel protractor, rule, circular hole, semicircle slotted eye; Described panel is a semicircle shape, is provided with a plurality of semicircle slotted eyes above, and the left side is provided with bevel protractor, and the right side is provided with rule and circular hole.
The beneficial effect of the utility model is: it can either work as the compasses use, can work as bevel protractor and rule again and use; And simple in structure, economical and practical, be applicable to student and drawing worker.
Description of drawings
Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.
Fig. 1 is the utility model structure chart
1-bevel protractor, 2-panel, 3-rule, 4-circular hole, 5-semicircle slotted eye among the figure.
The specific embodiment
In first embodiment shown in Figure 1, a kind of flat Graduated compasses is characterized in that: it is made up of panel, bevel protractor, rule, circular hole, semicircle slotted eye; Described panel is a semicircle shape, is provided with a plurality of semicircle slotted eyes above, and the left side is provided with bevel protractor, and the right side is provided with rule and circular hole.
In described second embodiment of Fig. 1, described circular hole is used for confirming central point, is centre point; Described semicircle slotted eye is used for picture semicircle or circle, confirms the center of circle through circular hole, and semicircle slotted eye rotation obtains semicircle or circle; Described bevel protractor is used for taking measurement of an angle; Described rule is used for measuring length.
When using the utility model, at first,, confirm home position, then, pen be placed in the semicircle slotted eye that rotating panel obtains semicircle or circle through circular hole; Bevel protractor and rule can take measurement of an angle and length, and be simple to operate, easy to use.
Claims (1)
1. flat Graduated compasses, it is characterized in that: it is made up of panel, bevel protractor, rule, circular hole, semicircle slotted eye; Described panel is a semicircle shape, is provided with a plurality of semicircle slotted eyes above, and the left side is provided with bevel protractor, and the right side is provided with rule and circular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200067690U CN202517941U (en) | 2012-01-06 | 2012-01-06 | Flat plate type scale compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200067690U CN202517941U (en) | 2012-01-06 | 2012-01-06 | Flat plate type scale compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202517941U true CN202517941U (en) | 2012-11-07 |
Family
ID=47100903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200067690U Expired - Fee Related CN202517941U (en) | 2012-01-06 | 2012-01-06 | Flat plate type scale compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202517941U (en) |
-
2012
- 2012-01-06 CN CN2012200067690U patent/CN202517941U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20130106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |